Glass-flattening table.



G. A. SHIELDS.

GLASS FLATTENING TABLE. APPLICATION FILED DBO. 1'1, 1910.

AWE/wok.

@EUR5/5 A .SH/ELUS y W fly/aff I ATTORNEY. l

VTNESSES:

COLUMBIA PLANDGRAPH Co., WASHING-MN. u, c.

G. A. SHIBLDS. GLASS FLATTENING TABLE.

APPLIOATION FILED DEO.17, 1910.

1,008,676, Iatented NOV. 14, 1.9117.

2 SHEETS-SHEET 2.

IVITNESSES- [NVE/V701?. 77j. EEURGEAfSH/E/ D5 @fw 2 ATTORNEY.

COLUMBIA PLANOGRAPM co.. WASHINGTON, u. c4

rio I GEORGE A. SHIELDS, 0F COLUMBUS, OHIO.

GLASS-FLATTENING TABLE.

Specification of Letters Patent.

Patented Nov. 14, 1911.

Application filed December 17,1910. Serial No. 597,831.

To all whom it may concern.' v

Be it known that I, GEORGE A. SHIELDS, a citizen of the United States, residing at 372 North I-Iigh street, Columbus, in the county of Franklin and State of Ohio,have invented certain new and useful Improvements in Glass-Flattening Tables, of which the following is a specification. K

The present invention relates to improvements in glass machines, and especially to the llattening tables used in the process of plate glass making.

`The table, as will be readily understood by those familiar with the art of plate glass making, is used in the step of flattening the glass cylinders or rolls into sheets.

One of the essential purposes of the invention being the provision of a table of this character which may be easily assembled, and also readily dismantled if required for any reason, and new parts substituted should occasion arise.

Another advantageous yfeature of the invention is the provision of a novel construction, possessing a wide supporting base for the table, preventing tilting of the table, but insuring a perfect level at all times, and a structure in which there is small likelihood of binding of parts.

The improved table consists of cert-ain novel features, and combinations and arrangement of parts as illustrated in the accompanying drawings, described in the following speciflcation, and more clearly pointed out in the appendedvclaims.

In the accompanying drawings I have' illustrated one example of the physicalembodiment of my invention constructed according to the best mode I have so far devised for the practical application of the principles of the invention, and one which has proven highly successful in actual use.

Figure 1 is a plan view of the wheel embodying the novel features of the present invention, parts of the wheel being removed for convenience of illustration, and partly inclosed by the oven wall. Fig. 2 is a verti- As customaryin many instances apply power, for rotating the table, exterior of the oven, as for instance by means of shaft 2 and pinion 3, the former being suitably supported in bearings 4, 4. The table as a whole is supported, through the medium of the circular base plate or ring 5, on the open pedestal or hollow base 6, which is of suitable and convenient refractory masonry or other construction. The base plate 5 is provided on its upper face with a circular groove 7 forming a` race for the bearing balls 8, and a complementary groove 9, forming the vopposing ball race of the bearing, is provided on the underside of the an nulus 10 of the rotatable member, designated as a whole by 11. This rotatable member 11 com-prises a central hub section or cylindrical portion 12, formed with an upper annular exteriorly extending flange 13. The hub memberis located preferably in a horizontal plane somewhat higher than the annulus 10, and is yconnected to said annulus by a series of radial integral webs 14. These webs 14 extend beyond the outer periphery of the annulus, and are formed with brackets or foot plateslw, 16, two types being illustrated. -The brackets form the attachment means for the gear ring or annular rack bar 17, andsaid 4bar is secured to the brackets by means of the bolts 18, and nuts 19, the bolts being passed through the holes 20 in the brackets.

As very f clearly illustrated in Fig. 4 the hub Ymember 12 is formed with a suitable number of sockets 21, which are formed of vertical slots extending radially through the wall of the hub. The sockets are adapted to receive the inner ends of the radially ex tending arms or spokes 22. By reference to Figs. 5 and 6 it will be seen that these spokes are T-shape in cross section, being formed with a vertical web 23, and a horizontal flange 24. At its inner end the flange 24 is out olf forming a shoulder 25, and the web at its upper face is cut out to form section.

In assembling the elements, the lug 27 of the spoke 22 is inserted within the socket 21, with the shoulders 25 and 26 bearing against the flange 13 and the upper wall of the slot 21 respectively. At a convenient distance from the inner end of each of the spokes, an integral transverse boss 28 is cast and fashioned with a concave grooved face or recess 23. Each of the spokes is provided with one of these grooved or concaved bosses, and they are adapted to fit over and rest upon the annular rib or projection 30 formed at the top of the annulus or ring 10 of the rotatable member 11. The rib 30 thus provides a support for the spokes or arms of the flattened wheel.

The platform of the table is preferably formed of a suitable number of segments 31 (Figs. 7 and 8) and in each instance the segment is composed of the sections 32 and 33 having on their undersurfaces the stiftening or strengthening ribs 34:. In addition the sections 33 are each-formed with upper and lower circumferential flanges 35, 36, forming a continuous circular flange 1n each case. These plate segments are placed upon the spokes, the edges of each plate resting upon two spokes, and they extend from the flange 12 of the hub to the outer ends of the spokes. Bosses 37 are cast upon the T-bars of the spokes, and complementary semicircular recesses 38 are provided in the edges of the plate sections to fit around these bosses in order to hold the plate sections of the table in position. The plates are secured, at the perimeter of the table, by bolts 39 to the spokes, but it will be observed that, except for this point of attachment, the parts are loosely placed, to provide for expansion and contraction of the materials in the oven. The customary flattening stones are supported upon the table, but these have been omitted as being unessential for a proper showing of the invention.

From the above description, taken in connection with the drawings, it is evident that I have provided a machine of the character 2. A flattening table comprising an integral rotatable member formed with'abearing ring, a hub section, radial webs, sockets in the hub, and spokes, an annular projection on'said ring and a complementary contact recess in each spoke, an annular rack bar secured to said bearing ring, a driving shaft, and a pinion thereon engaging the `rack bar.

3. In a machine as described, the combination with a base plate of a rotatable mem- ,ber and ball bearings therebetween, an integral ring on the rotatable member, a hub `section and radial webs connecting said hub :and ring, an annular support projecting `from said ring, spokes secured in sockets in the hub and resting upon said support, land complementary contact recesses in each spoke.

t. The combination with a base plate of a rotatable member and ball bearings therebetween, an integral ring on the rotatable member, a hub section and radial webs connecting said hub and ring, an annular prof jection on the ring, spokes secured in sockets on the hub and resting upon said projection, vcomplementary contact recesses in each spoke; and an annular rack bar secured to rotatable member, a driving shaft, and a pinion on the shaft engaging said rack bar.

In testimony whereof I affix my signature `in presence of two witnesses.

GEORGE A. SHIELDS.

Witnessesz IDA A. EVANS, C. M. SHIGLEY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

